Vibration Measurement With Video Processing Based on Alternating Optimization of Frequency and Phase Shifts

Vision-based measurement methods have attracted growing interest over the past years because of their non-contact sensing capability for acquiring the full-field vibrations of structure. Existing vision-based measurement techniques, such as point tracking (PT) and digital image correlation (DIC), re...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 2021, Vol.70, p.1-13
Hauptverfasser:	Zhou, Jiwen, Li, Hongguang, Zhang, Li, Wang, Xiaojian, Li, Yun
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Angular spatial frequency estimation Digital imaging Filter banks Filtering Frequency measurement Image contrast Image processing Iterative algorithms Iterative methods Measurement methods Measurement techniques monocular vision motion magnification Optical flow Optimization Phase measurement phase shifts Phase unwrapping Pixels Regularization Speckle patterns Vibration Vibration measurement Vibrations Video Vision
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